Add mouse input forwarding to gpu service

gpu/command_buffer/service/context_group.h

Index: gpu/command_buffer/service/context_group.h
diff --git a/gpu/command_buffer/service/context_group.h b/gpu/command_buffer/service/context_group.h
index eb53252806783812af9e87764def0441bfcddb52..411c5b29829be5c0d2f65621efdc312c21ba8f10 100644
--- a/gpu/command_buffer/service/context_group.h
+++ b/gpu/command_buffer/service/context_group.h
@@ -44,6 +44,7 @@ class GPU_EXPORT ContextGroup : public base::RefCounted<ContextGroup> {
  public:
   ContextGroup(
       const scoped_refptr<MailboxManager>& mailbox_manager,
+      const scoped_refptr<ValuebufferManager>& valuebuffer_manager,
       const scoped_refptr<MemoryTracker>& memory_tracker,
       const scoped_refptr<ShaderTranslatorCache>& shader_translator_cache,
       const scoped_refptr<FeatureInfo>& feature_info,
@@ -179,6 +180,7 @@ class GPU_EXPORT ContextGroup : public base::RefCounted<ContextGroup> {
   bool HaveContexts();
 
   scoped_refptr<MailboxManager> mailbox_manager_;
+  scoped_refptr<ValuebufferManager> valuebuffer_manager_;
   scoped_refptr<MemoryTracker> memory_tracker_;
   scoped_refptr<ShaderTranslatorCache> shader_translator_cache_;
   scoped_ptr<TransferBufferManagerInterface> transfer_buffer_manager_;
@@ -204,8 +206,6 @@ class GPU_EXPORT ContextGroup : public base::RefCounted<ContextGroup> {
 
   scoped_ptr<RenderbufferManager> renderbuffer_manager_;
 
-  scoped_ptr<ValuebufferManager> valuebuffer_manager_;
-
   scoped_ptr<TextureManager> texture_manager_;
 
   scoped_ptr<ProgramManager> program_manager_;